We believe that the information shared in above might help in troubleshoot-multi-user-issues-in-QuickBooks-point-of-sale. However, if the error persists even after carrying out the steps mentioned in the above piece of information, then in that case we would recommend you to consult our accounting professionals right awayat 1-888-351-0999. Our QuickBooks desktop support team of experts and certified professionals will provide you with immediate support services.